The implementation of advanced low-emission aircraft engine technologies and the
reduction of noise from airframe, fan, and jet exhaust have made noise contributions from an …

By modeling a multicomponent gas, a new source of indirect combustion noise is identified,
which is named compositional indirect noise. The advection of mixture inhomogeneities …

A first-of-its-kind examination of broadband noise associated with a far-term advanced low-
emission aerocombustor concept is presented. Because of design trends and expected …

Indirect combustion noise is a growing concern for aviation engine designers. It is typically
associated with the distortion of “hot spots”(entropy structures) and vortical structures that …

Combustion noise is an area of increasing research as its relative contribution to noise from
aviation gas turbine engines has grown in recent years. One of the current difficulties in …

Core noise, or the noise generated by unsteady combustion, is a growing concern for aircraft
engine designers. Core noise is typically divided between direct noise, the acoustic …